Graco Optimiser 2K Manuale operativo
308–610
Rev. A
INSTRUCTIONS-PARTS
LIST
INSTRUCTIONS
This
manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
See manual 308–341 for complete gun
warnings and instructions.
Optimiser
2K
Upgrade Kit
Part
No. 238–216
For
use with the Optimiser 2K
Spray Gun, Part No. 949–239
Pressure Relief Procedure
WARNING
PRESSURIZED
EQUIPMENT HAZARD
The equipment stays pressurized until pressure is
manually relieved. To reduce the risk of serious
injury from pressurized fluid, accidental spray from
the gun, or splashing fluid, follow this procedure
before cleaning or servicing the gun and whenever
you are instructed to relieve pressure.
1.
Close the adhesive and activator shut-of
f valves.
2. T
rigger the gun into the spray booth* to relieve the
fluid pressures and clear excess activator from the
gun.
*
If the gun has been flushed with solvent, be sure to
spray the solvent into a grounded metal waste con
-
tainer.
3.
Close the atomizing air shut-of
f valve.
GRACO INC. P.O. BOX 1441
MINNEAPOLIS, MN
55440–1441
COPYRIGHT
1995, GRACO INC.
Graco
Inc. is registered to I.S. EN ISO 9001
Installation
Disassembly
NOTE:
The reference letters marked with an asterisk
(for example, Y*) in the text and Fig. 1, should be
discarded and replaced with the parts from the kit. See
the parts list, page 4, for the parts included with the
kit.
1.
Flush and clean the gun as instructed in the spray
gun manual 308–341, included with the kit.
2.
Follow the
Pressure Relief Procedure
on the
cover.
3.
Remove the air cap (Y*) from the gun. See Fig. 1.
4.
Remove the gun and activator triggers (A, B).
5.
Push on the tube connector (C) and disconnect the
tube (D*).
6.
Remove the two screws (E) from the activator inlet
housing (F).
7.
Remove and disassemble the activator valve (G).
Fig. 1
A
B
*D
C
E
G
F
H*
05879
JT* M
L
*V
N
*Y
AA*
BB* CC*
DD*
8.
Remove the plate (H*) from the gun.
9.
Remove the fan air valve assembly (M). Remove
the retaining ring (J) and adjustment nut (T*) from
the air valve (N).
10.
Remove the fluid adjustment knob (L). Pull the
needle (V*) out of the gun body
.
11.
Discard the parts being replaced. Clean the re
-
maining parts in soapy water
.
Installing the Kit
NOTE:
See Fig. 3 for torques and other assembly
notes.
1.
Assemble the activator valve (G), using the kit
parts (1, 8, 1
1).
a.
Make sure the thin end of the needle (11) is
straight to avoid scratching the nozzle.
b.
Install the o-ring (Q), spreader (P), and activa
-
tor packing nut (K) into the activator inlet
housing (F). See Fig. 2.
Fig. 2 02781A
P
Q
Spreader
(P) taper faces away from o-ring (Q)
T
ighten packing nut (K) to 20 in-lbs (2.3 N
Sm)
K
F
c. Assemble
the remaining valve parts.
d.
Secure the activator housings (8, F) with the
four stainless steel screws (1).
CAUTION
T
o avoid damaging the threads, do not over-tighten
the screws (1).
Installation
Installing the Kit (continued)
2. Install
the restrictor (6), flat side up, into the activa
-
tor outlet housing (8).
3.
Place the o-ring (9) in the groove in the activator
outlet housing (8). Lightly lubricate the o-ring.
4.
Secure the activator valve (G) to the plate (7) with
the two screws (E).
5.
Place the o-ring (9) in the groove on the plate (7).
Lightly lubricate the o-ring, and slide the plate, with
the activator valve assembly
, onto the top of the
gun body
.
6.
Install the gun and activator triggers (A, B) with the
pivot pin (S) and screw (R).
7.
Install the needle (5) into the gun body
, then install
the fluid adjustment knob (L) and spring (X).
8.
Pull back the trigger (A) until the activator valve
starts to open. T
ighten the two hex nuts on the
activator needle so that both fluid valves open
together.
9.
Install the adjustment nut (4) and the retaining ring
(J) on the air valve (N). Install the air valve assem
-
bly into the gun body
.
10.
Connect the tube (2).
11.
Install the air cap (10), and secure it with the
retaining ring (W).
Fig. 3
F
11
E
G
B
A
2
7
8
1
9
6
R
S
05880
9
3
W
10
J4
N
5
X
L
Lightly
lubricate.
Lightly lubricate contact area on trigger (B) face.
T
ighten to 25–35 in-lbs (2.8–4.0 N
Sm).
T
ighten to 1–5 in-lbs (0.1–0.6 N
Sm).
T
ighten to 10–15 in-lbs (1.1–1.7 N
Sm).
T
ighten to 20 in-lbs (2.3 N
Sm).
T
ighten to 5 in-lbs (0.6 N
Sm).
4308-610
Parts
Part No. 238–216
Includes
items 1 to 12. Refer to Fig. 3, page 3.
Ref.
No.
Part No.
Description Qty.
1 113–411 SCREW
, cap, SST
; 10–24 x 3/4 in.
4
2 187–169
TUBE; nylon;
5/32 in. (3.97 mm) O.D.
1
3l514–581 CONNECT
OR, tube
2
4 188–700 NUT
, air adjustment
1
5 238–218
FLUID NEEDLE ASSY
.;
0.055 in. (1.397 mm) size
1
6 191–015 RESTRICT
OR, orifice
1
Ref.
No.
Part No.
Description Qty.
7 190–247 PLA
TE, gun
1
8 625–730
HOUSING, activator outlet
1
9 106–555
O-RING; V
itonr2
10 185–794
AIR CAP; 0.020–0.055 in.
(0.508–1.397 mm) size
1
11 949–295
NEEDLE ASSY
., activator valve
1
l
The tube connectors are included as spare parts.
They do not need to be installed with the other kit
parts. In general, replace the tube connectors after
6 months of usage.
Graco
Phone Number
TO
PLACE AN ORDER
, contact your Graco dis
-
tributor
, or call this number to identify the distribu
-
tor closest to you:
1–800–367–4023 T
oll Free
Sales
Offices:
Atlanta, Chicago, Detroit, Los Angeles
Foreign Offices:
Belgium, Canada, England, Korea, Switzerland, France, Germany
, Hong Kong, Japan
GRACO INC. P.O. BOX 1441
MINNEAPOLIS, MN
55440–1441
PRINTED
IN U.S.A. 308–610 December 1995
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